AirHint found the following cheapest return flights from Istanbul (IST) to Oslo (OSL) in July 2026 (see full year).

Return flights

11 Jul - 19 Jul	LOT
20 Jul - 29 Jul	Aegean Airlines
06 Jul - 13 Jul	Aegean Airlines
27 Jul - 31 Jul	Aegean Airlines
13 Jul - 18 Jul	Lufthansa
03 Jul - 12 Jul	Lufthansa
04 Jul - 12 Jul	Lufthansa
06 Jul - 13 Jul	Turkish Airlines	direct
04 Jul - 12 Jul	Turkish Airlines	direct
20 Jul - 29 Jul	Turkish Airlines	direct

Also check the deals for one-way flights from Istanbul to Oslo in July.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Istanbul to Oslo in July from $234

Return flights